This working paper presents a benchmarking analysis of School Based Management (SBM) using empirical data from the Philippines. School based management is widely used as a policy tool in many countries that seek to improve the quality of service delivery through decentralization. School based management typically takes many years to have an impact on educational outcomes, but policy makers need to know sooner how well the policy is being implemented. The paper extends the well-known Rasch methodology from the literature on student achievement, including the Programme for International Student Assessment, to the measurement of the implementation of school based management by computing a Rasch measure of the implementation of school based management. To test whether the resulting benchmarked measure is plausible and has practical